Puerto Rico heads to polls in referendum on becoming 51st state

A man reads campaign posters in San Juan before the vote on Puerto Rican statehood. Puerto Ricans are heading for polling stations as the island’s fifth plebiscite in 50 years on whether to become the 51st state of the United States gets under way. The referendum is the brainchild of the ruling Partido Nuevo Progresista (PNP) and its governor of Puerto Rico, Ricardo Rosselló.